CN209817067U - Filtering device for purifying rainwater - Google Patents

Abstract

The utility model discloses a filtering device for purifying rainwater, which comprises a rainwater concentration pool, a sludge concentration pool, a rainwater filtering pool and a clear water storage pool, wherein the bottom of the rainwater concentration pool is provided with a sewage sludge discharge port which is communicated with the sludge concentration pool; the upper part of the rainwater concentration tank is provided with a first water outlet which is communicated with the rainwater filtering tank through a first pipeline; a second water inlet is formed in the top of the rainwater filtering tank, and the first pipeline is communicated with the second water inlet; a second water outlet is formed in the lower part of the rainwater filtering tank and communicated with the clean water storage tank; a first water suction pump is arranged in the clear water storage tank and connected with a second pipeline; the water outlet of the second pipeline is arranged outside the clear water storage pool and is provided with a filter. The utility model discloses simple structure can collect, filter the back secondary use to the rainwater, also can discharge the mud filtering in the rainwater simultaneously, and is energy-concerving and environment-protective.

Description

Filtering device for purifying rainwater

Technical Field

The utility model relates to a rainwater utilizes technical field, has especially related to a filter equipment who purifies rainwater.

Background

In the middle east and northern africa of 2000 b.c., there are records of rain water. Rain water collecting systems for collecting rain water for irrigation, life, public health and the like have appeared in the middle east, south arabian and north africa; arabic collects rainwater to guarantee agriculture, and is known as a granary of the Roman empire; similarly, in srilanka, in order to develop agriculture, a series of small-scale pond ponds are built before the yuan to store water in the season of rich rain for use in the season of water shortage; the names of many villagers in India have a word tail related to rainwater, and therefore rainwater utilization is also paid considerable attention in India.

In the long-term struggle with drought climate, greeks, arabic, israeli have accumulated a rich experience of collecting rainwater. In developed america, the history of rainwater utilization is long, indians in the desert of arizona collected rainwater into a few hectares of large area to develop agriculture, and colorado constructed thousands of small dams 500 years ago with north anaxsa to collect rainwater that rushes down hills to plant crops. In the 60 s of the 20 th century, japan began to collect rainwater using road surfaces, and in the 70 s, a collecting surface was constructed.

China is one of the countries with a long history of rainwater utilization, the rice field water collection and drought prevention are recorded six or seven thousand years ago, and flood leading and land spreading technologies exist in loess plateau areas in spring and autumn; before 2500 years, plain reservoirs are built in the Anhui shou county to intercept runoff and irrigate crops, and series pond groups are also built in the hilly areas of the Han watershed; the Longwanggio and the Tiantan of the emperor and the like in all places can sufficiently illustrate that rainwater is valued in the ancient society.

With continuous development, the existing society fully exerts the functions of absorption, storage, permeation and slow release of rainwater by building ecological systems such as buildings, roofs, greenbelts, water systems and the like through constructing sponge cities, and effectively controls rainwater runoff and environmental-friendly secondary utilization. The sponge city is a sponge city which can be like a sponge, has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like, absorbs water, stores water, seeps water and purifies water during raining, needs to release and utilize the stored water, solves the problem of the city, must conform to the nature, preferentially considers the limited rainwater to be left when a city drainage system is lifted, preferentially considers more natural force to drain water, and builds a 'sponge city' with natural accumulation, natural infiltration and natural purification.

Be provided with solitary drainage channel among the prior art usually on the building roof, drain pipe connection rainwater collecting pit, then recycle, but along with city atmosphere pollution and ground pollution's increase, the rainwater runoff pollutes progressively more seriously, contains more pollutant and debris in consequently flowing into the rainwater collecting pit, is unfavorable for the reutilization of rainwater.

Disclosure of Invention

Not enough to prior art exists, the utility model aims at providing a filter equipment who purifies rainwater just, simple structure can collect, filter back secondary use to the rainwater, also can discharge the mud filtering in the rainwater simultaneously, energy-concerving and environment-protective.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a filtering device for purifying rainwater comprises a rainwater concentration pool, a sludge concentration pool, a rainwater filtering pool and a clear water storage pool, wherein a first water inlet is formed in the top of the rainwater concentration pool; the bottom of the rainwater collecting tank is provided with a sludge discharge port which is communicated with the sludge collecting tank through a sludge discharge pipeline; the upper part of the rainwater concentration tank is provided with a first water outlet which is communicated with the rainwater filtering tank through a first pipeline; a sludge discharge assembly is arranged at the lower part of the rainwater collecting pool and is arranged above the sludge discharge port; a second water inlet is formed in the top of the rainwater filtering tank, and the first pipeline is communicated with the second water inlet; the middle part of the rainwater filter tank is provided with a filter plate, the filter plate sequentially comprises a grid filter piece, an upper filter screen, a filter cavity, a lower filter screen and a guide plate from top to bottom, and the grid filter piece is provided with a plurality of inverted cone-shaped holes; wherein the hole wall of the inverted conical hole is distributed with a plurality of adsorption parts, and the upper filter screen is tightly attached with the grid filter piece and is provided with a plurality of arc convex parts matched with the inverted conical hole; the lower filter screen is arc-shaped, the arc-shaped concave surface faces the guide plate, and a plurality of guide holes are formed in the guide plate; a second water outlet is formed in the lower part of the rainwater filtering tank and communicated with the clean water storage tank; a first water suction pump is arranged in the clear water storage tank and connected with a second pipeline; the water outlet of the second pipeline is arranged outside the clear water storage pool and is provided with a filter; the filter comprises a third water inlet and a third water outlet, and clear water enters from the third water inlet and sequentially passes through the gravel layer, the curved filtering carbon tube, the reverse osmosis membrane and the activated carbon layer and then flows out from the third water outlet.

As a preferable scheme, the lower part of the rainwater collecting pool is in an inverted cone shape.

As a preferable scheme, the sludge discharging component comprises a bracket, a motor, a rotating shaft and a soft scraping piece, wherein the bracket is arranged at the lower part of the rainwater collecting pool; the motor is arranged on the bracket, and a waterproof sleeve is arranged outside the motor; the top end of the rotating shaft is connected with a transmission shaft of the motor, the bottom end of the rotating shaft is connected with the soft scraping piece, and the central axis of the rotating shaft is positioned in the vertical direction; the soft scraping piece is arranged at the bottom of the rainwater concentration tank and is tightly attached to the rainwater concentration tank.

As a preferable scheme, a first valve is arranged on the sludge discharge pipeline.

As a preferable scheme, an arc-shaped guide surface is arranged at the bottom of the rainwater filtering tank, and faces the second water outlet.

As a preferable scheme, a second water suction pump is arranged on the first pipeline.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure can collect, filter the back secondary use to the rainwater, also can discharge the mud filtering in the rainwater simultaneously, and is energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the filter plate according to the present invention;

fig. 3 is a schematic structural diagram of the filter of the present invention.

Detailed Description

The invention will be further described with reference to specific embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example (b):

as shown in fig. 1 to 3, a filtering device for purifying rainwater comprises a rainwater concentration tank 1, a sludge concentration tank 2, a rainwater filtering tank 3 and a clear water storage tank 4, wherein a first water inlet 5 is formed in the top of the rainwater concentration tank 1; the bottom of the rainwater collecting pool 1 is provided with a sludge discharge port 6, and the sludge discharge port 6 is communicated with the sludge collecting pool 2 through a sludge discharge pipeline 7; the upper part of the rainwater concentration tank 1 is provided with a first water outlet 8, and the first water outlet 8 is communicated with the rainwater filtering tank 3 through a first pipeline 9; the lower part of the rainwater collecting pool 1 is provided with a sludge discharging assembly 10, and the sludge discharging assembly 10 is arranged above the sludge discharging port 6; a second water inlet 11 is formed in the top of the rainwater filtering tank 3, and the first pipeline 9 is communicated with the second water inlet 11; the middle part of the rainwater filtering tank 3 is provided with a filtering plate 12, the filtering plate 12 sequentially comprises a grid filtering piece 13, an upper filtering net 14, a filtering cavity 15, a lower filtering net 16 and a flow guide plate 17 from top to bottom, and the grid filtering piece 13 is provided with a plurality of inverted cone-shaped holes 18; wherein, a plurality of adsorption parts 19 are distributed on the hole wall of the inverted cone-shaped hole 18, and the upper filter screen 14 is tightly attached with the grid filter piece 13 and is provided with a plurality of arc convex parts 20 matched with the inverted cone-shaped hole 18; the lower filter screen 16 is arc-shaped, the arc concave surface 21 faces the guide plate 17, and a plurality of guide holes 22 are formed in the guide plate 17; a second water outlet 23 is formed in the lower part of the rainwater filtering tank 3, and the second water outlet 23 is communicated with the clear water storage tank 4; a first water pump 24 is arranged in the clean water storage tank 4, and the first water pump 24 is connected with a second pipeline 25; the water outlet of the second pipeline 25 is arranged outside the clean water storage tank 4 and is provided with a filter 26; the filter 26 comprises a third water inlet 27 and a third water outlet 28, and clean water enters from the third water inlet 27 and sequentially passes through a gravel layer 29, a curved filtering carbon pipe 30, a reverse osmosis membrane 31 and an activated carbon layer 32 and then flows out from the third water outlet 28.

Specifically, the lower part of the rainwater concentration pool 1 is in an inverted cone shape, so that the sludge can slide to the sludge discharge port 6.

Specifically, the sludge discharging assembly 10 comprises a bracket 33, a motor 34, a rotating shaft 35 and a soft scraping piece 36, wherein the bracket 33 is installed at the lower part of the rainwater collecting tank 1; the motor 34 is arranged on the bracket 33, and a waterproof sleeve 37 is arranged outside the motor 34; the top end of the rotating shaft 35 is connected with a transmission shaft of the motor 34, the bottom end of the rotating shaft 35 is connected with the soft scraping piece 36, and the central axis of the rotating shaft 35 is positioned in the vertical direction; the soft scraping piece 36 is arranged at the bottom of the rainwater concentration tank 1 and is tightly attached to the rainwater concentration tank 1.

More specifically, motor 34 operates and drives pivot 35 and rotate, and then drives soft scraper 36 rotatory, and soft scraper 36 brushes the bottom of rainwater centralized pool 1 and scrapes, prevents that mud from gluing on rainwater centralized pool 1.

Specifically, the sludge discharge pipeline 7 is provided with a first valve 38.

More specifically, the first valve 38 functions to open and close the piping, control the flow direction, regulate and control the parameters of the transport medium.

Specifically, the bottom of the rainwater filtering tank 3 is provided with an arc-shaped guide surface 39, and the arc-shaped guide surface 39 faces the second water outlet 23.

More specifically, by providing the arc-shaped guide surface 39, the filtered water is guided to the second water outlet 23 and enters the clean water storage tank 4.

Specifically, a second water pump 40 is arranged on the first pipeline 9.

During specific implementation, the rainwater gets into and carries out the layering in the concentrated pond of rainwater 1, mud sinks to the bottom and gets into concentrated pond of mud 2 by blowdown mud pipeline 7, and 1 upper portion prefilter's of concentrated pond of rainwater enters into rainwater filtering ponds 3 by first pipeline 9, and filter through filter 12, then once filterable clear water passes through second delivery port 23 and enters into clear water storage pond 4, first suction pump 24 takes out the clear water in the clear water storage pond 4 and gets into in the second pipeline 25, supply the use after passing through filter 26 secondary filter again.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (6)

1. A filter equipment who purifies rainwater which characterized in that: the device comprises a rainwater concentration tank, a sludge concentration tank, a rainwater filtering tank and a clear water storage tank, wherein a first water inlet is formed in the top of the rainwater concentration tank; the bottom of the rainwater collecting tank is provided with a sludge discharge port which is communicated with the sludge collecting tank through a sludge discharge pipeline; the upper part of the rainwater concentration tank is provided with a first water outlet which is communicated with the rainwater filtering tank through a first pipeline; a sludge discharge assembly is arranged at the lower part of the rainwater collecting pool and is arranged above the sludge discharge port; a second water inlet is formed in the top of the rainwater filtering tank, and the first pipeline is communicated with the second water inlet; the middle part of the rainwater filter tank is provided with a filter plate, the filter plate sequentially comprises a grid filter piece, an upper filter screen, a filter cavity, a lower filter screen and a guide plate from top to bottom, and the grid filter piece is provided with a plurality of inverted cone-shaped holes; wherein the hole wall of the inverted conical hole is distributed with a plurality of adsorption parts, and the upper filter screen is tightly attached with the grid filter piece and is provided with a plurality of arc convex parts matched with the inverted conical hole; the lower filter screen is arc-shaped, the arc-shaped concave surface faces the guide plate, and a plurality of guide holes are formed in the guide plate; a second water outlet is formed in the lower part of the rainwater filtering tank and communicated with the clean water storage tank; a first water suction pump is arranged in the clear water storage tank and connected with a second pipeline; the water outlet of the second pipeline is arranged outside the clear water storage pool and is provided with a filter; the filter comprises a third water inlet and a third water outlet, and clear water enters from the third water inlet and sequentially passes through the gravel layer, the curved filtering carbon tube, the reverse osmosis membrane and the activated carbon layer and then flows out from the third water outlet.

2. A filtering apparatus for purifying rainwater according to claim 1, wherein: the lower part of the rainwater collecting pool is in an inverted cone shape.

3. A filtering apparatus for purifying rainwater according to claim 1, wherein: the sewage sludge discharging component comprises a support, a motor, a rotating shaft and a soft scraping piece, and the support is arranged at the lower part of the rainwater collecting pool; the motor is arranged on the bracket, and a waterproof sleeve is arranged outside the motor; the top end of the rotating shaft is connected with a transmission shaft of the motor, the bottom end of the rotating shaft is connected with the soft scraping piece, and the central axis of the rotating shaft is positioned in the vertical direction; the soft scraping piece is arranged at the bottom of the rainwater concentration tank and is tightly attached to the rainwater concentration tank.

4. A filtering apparatus for purifying rainwater according to claim 1, wherein: and a first valve is arranged on the sludge discharge pipeline.

5. A filtering apparatus for purifying rainwater according to claim 1, wherein: and an arc-shaped guide surface is arranged at the bottom of the rainwater filtering tank and faces the second water outlet.

6. A filtering apparatus for purifying rainwater according to claim 1, wherein: and a second water suction pump is arranged on the first pipeline.